{"product_id":"canon-bj-i70-replacement-battery-108v-2300mah-li-ion","title":"Canon LB-51 BJ-I70 Replacement Battery 10.8V 2300mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCanon BJ-I70 \/ BJ-IP90 Series — 10.8V Li-ion Replacement Battery (LB-51)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 10.8V, 2300mAh lithium-ion battery replaces the Canon LB-51 (also listed as 0074B001, LK-51B, LB-50, LK-51) in the BJ-I70, BJ-I80, BJ-IP90, and Pixma I70 portable inkjet printers. It restores cordless print capability when the original cell no longer holds charge. Voltage and capacity match Canon's factory specification exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBJ-I70 \/ BJ-IP90 platform fit:\u003c\/strong\u003e\n    These models share the same 10.8V three-cell lithium pack, battery bay connector, and BMS handshake protocol. One battery covers both the BJ-series and the Pixma I70 line because the power management circuit is common across all variants.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through the BJ-I70 power-on sequence, print head initialisation, and a multi-page print cycle. The BMS held communication throughout — no false low-battery flags, no mid-cycle cutoff under combined motor and heating element load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-run charging on Canon portable printers:\u003c\/strong\u003e\n    Charge this battery to full before the first print run. The print head motor and heating element together draw peak current at startup. A partially charged cell can trigger the BMS cutoff before the first page clears — not a fault, just insufficient starting voltage.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the BJ-I70 stops mid-print rather than showing a low-battery warning\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe BJ-I70 manages power through a BMS that monitors cell voltage in real time. When the heating element and feed motor fire simultaneously, combined current draw can spike the internal resistance of a degraded or partially charged cell enough to pull voltage below the BMS cutoff threshold. The printer shuts down instantly — no warning, no graceful stop. This is not a printer fault. It is the BMS protecting the cells from over-discharge at the moment of peak load. A fully charged replacement cell with healthy internal resistance clears that threshold during the startup spike.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePrinter shows full bars on new battery but won't start a print job\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA freshly installed battery can display full charge on the indicator while still failing to drive the print cycle. This happens when the battery has shipped in a deep-discharged state and the Canon battery gauge reads stored BMS data rather than a live cell measurement. Connect the printer to the charger and run a full charge cycle from zero — allow the charger to terminate naturally. Once charge completes and resting voltage stabilises above 12.0V on the pack, the print job initialisation sequence will clear normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416086872154,"sku":"BWCS-LB51-1","price":50.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416086904922,"sku":"BWCS-LB51-2","price":58.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416086937690,"sku":"BWCS-LB51-3","price":65.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LB51-1.webp?v=1779760240","url":"https:\/\/batteryweb.com\/products\/canon-bj-i70-replacement-battery-108v-2300mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}